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Medicare

Medicare's parts, plans, and enrollment windows explained without the sales pitch — Original Medicare, Medigap, and Medicare Advantage compared honestly.

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Medicare

Medicare Enrollment Index

Total Medicare, Original Medicare, Medicare Advantage and Other Health Plan, and Part D enrollment by state and county.

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Jun 15, 2026
Medicare's Alphabet, Decoded: Parts A, B, C, and D — and Where Medigap Fits
A plain-English map of Medicare's four parts, how Original Medicare and Medigap compare to Medicare Advantage, and why enrollment timing matters.
4 min read

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Medicare Enrollment Index

Medicare's Alphabet, Decoded: Parts A, B, C, and D — and Where Medigap Fits